the app "Aerops" is becoming more and more frequent throughout Europe as a means of paying your landing fee. I could think about integrating it into SkyDemon that you could use the price data in the "Find a destination" function similar to adopted airfields. Also one could link airplane profiles from SD to the ones on Aerops and possibly pay the fees through SD like managing a flight plan.

I understand that there is no dire need for this feature but on the other hand SD is already incorporating great third party features (thinking about GAR reports f.e.) and this one could streamline the process a little bit.

Great idea! I'm a frequent "Aerops" user by myself as well, and I think it has a lot potential, especially during and beyond the Covid-19 crisis. Besides paying landing fees, some airfields even publish their fuel prices, including a possibility to pay via the app.

My homebase even has a NOTAM in place for non-based pilots, which are now forced to use the app to pay their fees and fuel, since our C-office is still closed due Covid-19 and cash payments aren't allowed anymore.